let lastEvent;
['click','touchstart','mousedown','keydown','mouseover'].forEach(eventType => {
    document.addEventListener(eventType, (event) => {
        lastEvent = event;
    }, {
        capture: true,//捕获阶段
        passive: true//默认不阻止默认事件
    })
})

export default function (){
    return lastEvent;
}